BS EN ISO 22721:2007

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Construction
5 Length
6 Width
7 Rubber cover
8 Tolerances on total belt thickness and cover thickness
9 Transverse fabric joints in multi-ply belting
10 Longitudinal fabric joints
11 Elongation
12 Full thickness tensile strength
13 Adhesion
14 Troughability
15 Sampling
16 Designation
17 Identification
Annex A (informative) Items to be agreed between manufacturer
                       and purchaser
Annex B (informative) Helpful information to be supplied
                       by the purchaser
Annex C (informative) Lateral drift (straight running)
Bibliography

Defines requirements for rubber- or plastics-covered conveyor belting of textile construction for underground mining on flat or troughed idlers.

This International Standard specifies requirements for rubber- or plastics-covered conveyor belting of textile construction for underground mining on flat or troughed idlers. It is not applicable to light conveyor belts as described in ISO21183-1.

This International Standard does not include requirements for plastics covers. These will need to be agreed upon by the manufacturer and purchaser, taking into account the type of plastics to be used.

Related items that are not requirements of this International Standard, but which it is recommended be agreed upon by the manufacturer and purchaser, are included in AnnexA.

Details recommended to be supplied by the purchaser of belting with an enquiry are given in AnnexB.

The ability of a belt to run straight cannot be assessed until the belt is installed. Requirements for this are, therefore, outside the scope of this International Standard; nevertheless, recommendations for lateral drift are given in AnnexC.